Flush-valve.



A. N. PASMAN.

FLUSH VALVE.

APILIOATION FILED AUG. 5, mm.

Patented Aug. 20, 1912.

UNITED STATES PATENT FFIoE.

ABRAM N. rnsmm, or JERSEY CITY, NEw JERSEY, AssIeNoE 'ro. WILLIAM H.

a BONYNGE, 0E JERSEY CITY, NEW J EsEY.

rtusavatvn.

To all whom it may. concern:

Be it, known that 1, Animal N. PAsMAma citizen of the United States, residing in Jersey City, county of Hudson, and State of New Jersey,have invented an Improvement in Flush-Valves, of which the following is a specification. I

My invention relates to flush valves such as are used as faucets, in closets, urinals and similar places, in which a predetermined flow of water is required at desired times.

The valve made in accordance with-my I ---a piston valve and an independent inlet valve were employed in spaced apart positions and the structure was such that to operate properly, it was necessary that both of these valves be made to seat simultaneously.

' side thereof adjacent to the bottom. On the 'p This required not only accurate machine work, but also perfect adjustment in order that the proper'operation of the apparatus might be obtained, whereas in my present invention, the apparatus comprises but a single valve which performs the functions of both the valves in'the structures illustrated and described in the aforesaid Letters Patout, as will be hereinafter more particularly described.

' In the drawing, Figure 1 is a central longitudinal cross section of a flush valve illustrating my present invention Fig. 2 is a similar'view showing the lower portion of the apparatus with the piston raised and the valve in an unseated position, and Fig. 3 is a plan view of the apparatus with the cap thereof removed.

Referring to the drawing, the flush valve comprising my present invention, preferably consists of a cylindrical casing 10 having an inlet connection 11 at the bottom and an outlet connection 12 preferably'on the side of the casing 1t) there is also a'il'ongitujdinal wall 13 providing for a passageway 14 leading from the outlet connection 12,

h so as to make a communication between the Specification of Letters Patent. A Application flied August 5, 1910. Serial No. 575,786.

. 32 is employed I passing throu Patented Aug. 20,1912.

same and the interior of the cylinder. At

the lower end qfthe cylinder proper, there is a bottom member 15 provided with an opening and the sides of the walls defining the opening are tapered as indicated at 16 to }provide a valve seat.

Jxtending upwardly toward the cylinder bottom 15 from the inlet connection 11, there is a circular wall 17 the upper extremity of which is preferably flaringand the inner surface thereof tapered as indicated at 18 to also form a valve seat, the valve seat 16 and the valveseat 18 being tapered at the same angle. e 1

Within the cylinder 10 there is] a tubular member 20 in which is provided a regulating screw 21 having angular slots 22 oppositely disposed therein so as to' provide for the admission of the water from the inlet connection to the cylindrical chamber above the piston. Surrounding the depending tubular member 20- is a conical valve 23 made of any suitable yielding material adapted when the piston 19- is in its lowermost position, to bear against the valve seats 16 and 18, and this conical valve 23 is secured in position by means of a nut 24 and a lock nut 25, both of which are turned down on the screw threadved extremity of the depending member 20. The exterior of the opposite or upper end of the cylindrical member 10 is screw threaded to receive a cap or hood member 26 and the upper end of the cylindrical member 10 is provided with a circular channel 27 communicating with the chamber 28 in the cap 26, the chamber 28 in the cap 26 being provided for by the wall 29 therein, and between the adjacent surfaces of the cylindr cal member 10 and the cap 26, a gasket 30 is employed to insure a tight joint. The cap 26 lsprovided with a socket 31 between the end of which and the base of the opening provided therefor in the cap 26, a gasket to also insure a tight joint.

button secured to a pin 34 h the socket 31 and surrounded therem by a spring 35 which as will be understood, tends to normally maintain the push button 33 and the pin 34 in their outerpositioris. At its inner end the in 34 is provided with a reduced irtion" 36 and this reduced portion 36 is still fur- 33 is a push ther reduced as indicated at 37, whichiform's .the inner end of the pin 34,.

in the wall 29 and surrounding the reduced portion 36 and extending through the opening 38 there is a sleeve 39. The lower portion of this sleeve 39-is flanged as indicated at 40 and-is suitably recessed to receive a valve 41 adapted to bear against theseat 42 formed at the inner extremity of the wall or lip 43 surrounding the opening 38. The valve 44 is secured on the reduced end 37 by the nut 46 or otherwise and this valve 44 is adapted to bear against a'seat 45 provided therefor in the sleeve 39.

The push button structure hereinbefore last described for releasing the pressure within the cylindrical .member 10 I above the piston, is .similar to or the equivalent 'of the like parts shown and described in Letters Patent No. 956158, to which reference has hereinbefore been made.

It will.be understood thatthe Wall 29 tion of the cap by the wall 47 in which at suitable intervals there are openings 48 whereby direct communication is provided between the chamber 28 in the cap 26 and the outlet connection 12 by Way of the channel 27 and the by the Wall 13.

In the operation of the hereinbefore de-' scribed flush valve, -upon the push button 33 being depressed, the valve 44 is first unpassageway 14 provided for seated, then the valve 41 is unseated, when as will be understood, 'the pressure in the cylinder above the piston is released, whereby through the action of the water or other liquid under pressure in the inlet connection, the piston 19 will be raised and the valve 23 moved from its seats 16' and 18, the Water or other liquid occupying the space above the piston within the cyllnder being meanwhile forced through the opening 38 into the chamber 28 and passing by way-of the channel 27 and passageway 14 to the outlet connection, and as will beialso understood when the piston is raised and the valve 23 unseated, there will be open communication between-the inlet 11 and the outletconnection 12. Immediately upon the push button 33 being released, the valves 44 and 41 are reseated through the action of the spring 35 raising the pin 34and when the water more or less quickly,-depending upon the position of the regulating screw 21,-enters normal position,therebylreseating the valve 23 and preventing the further flow of water to the outlet connection either directly past the valve seat 18 or indirectly through the piston and cylinder past the valve seat 16. It will also be noted that the nut 24 is preferably cylindrical outline and of slightly less diameter than thB'bOI'G of the wall 17, so that in reseatin the valve 23, the water from the sourceo supply is gradually cut ofi', and-the desired and so called refill effect is provided 'for. .T

I claim as my invention: 1. An 7 automatically closing flush valve com rising -a casing having a cylindrical portion and inlet and outlet connections, a-

inner end of said wall, a piston, a depending tubular member connected to said piston, a conical valve adapted to bear simultaneously against both the said valve seats, means for securing the said conical valve in position on the depending tubular member, the said means being adapted to pass and fit within the said wall extending in: wardly from the inlet connection to gradually shut ofl the supply of liquid, means for releasing the pressure normally above the piston and regulatable means permitting'a flow of liquid through the said piston to move the same to seat the said conical valve.

2. An automatically closing flush valve comprising .a casing having a cylindrical portion and inlet and outlet connections, a

bottom tothe said cylindrical portion, a

ta ered valve seat in said bottom, a cylindrical Wall extending inwardly from the said inlet connection into a chamber envalve seat in the inner end of said cyl1ndri-' cal wall, a piston, a depending tubular member connected to said piston, a conical valve adapted to bear simultaneously against both the said valve seats, a cylindrical'nut on the end of said depending tubular portion for securing the said conical valve in position and for entering thespace within the said cylindrical wall extending inwardly from the inlet connection for initially and gradually shutting off the supply of liquid, means for releasing the pressure normally above the piston and regulatable meanspermittinga flow of liquid through the said piston to move the same to seat the said conical valve.

ABRAM N. PASMAN;

Witnesses:

Gno. T. PINOKNEY, Banana M. ALLEN. 

